Abstract: A D.C. motor is provided with a higher sustaining torque by providing an ascially extending slot on each tooth of an armature core. The slot is located in the center of the outer surface of each tooth opposite the field magnets.

Abstract: A rectifier assembly for use in the rotor of an electrical generator is provided with a plurality of generally disc-shaped diode packages arranged in a stack along a common axis. Radial bus bars are positioned between the diode packages and extend radially beyond the diode stack. Electrically and thermally conductive through bolts extend between a pair of end members on opposite ends of the diode stack and are electrically connected to the radial bus bars. Each of the through bolts includes a longitudinal opening for receiving cooling fluid. Selected ones of the through bolts are held in tension between the end members, thereby axially compressing the diode and radial bus bar stack. Spring terminals are provided for electrically connecting the through bolts to an external circuit and the entire assembly is conveniently packaged as a plug in module.